LED including photonic crystal structure
    2.
    发明授权
    LED including photonic crystal structure 有权
    LED包括光子晶体结构

    公开(公告)号:US07279718B2

    公开(公告)日:2007-10-09

    申请号:US10059588

    申请日:2002-01-28

    摘要: A photonic crystal light emitting diode (“PXLED”) is provided. The PXLED includes a periodic structure, such as a lattice of holes, formed in the semiconductor layers of an LED. The parameters of the periodic structure are such that the energy of the photons, emitted by the PXLED, lies close to a band edge of the band structure of the periodic structure. Metal electrode layers have a strong influence on the efficiency of the PXLEDs. Also, PXLEDs formed from GaN have a low surface recombination velocity and hence a high efficiency. The PXLEDs are formed with novel fabrication techniques, such as the epitaxial lateral overgrowth technique over a patterned masking layer, yielding semiconductor layers with low defect density. Inverting the PXLED to expose the pattern of the masking layer or using the Talbot effect to create an aligned second patterned masking layer allows the formation of PXLEDs with low defect density.

    摘要翻译: 提供了一种光子晶体发光二极管(“PXLED”)。 PXLED包括在LED的半导体层中形成的诸如孔格的周期性结构。 周期性结构的参数使得由PXLED发射的光子的能量靠近周期性结构的带结构的带边。 金属电极层对PXLED的效率有很大的影响。 此外,由GaN形成的PXLED具有低表面复合速度,因此具有高效率。 PXLED由新颖的制造技术形成,例如在图案化掩模层上的外延横向过度生长技术,产生具有低缺陷密度的半导体层。 将PXLED反转以露出掩模层的图案或使用Talbot效应创建对准的第二图案化掩模层允许形成具有低缺陷密度的PXLED。

    Stub-tuned photonic crystal waveguide
    4.
    发明授权
    Stub-tuned photonic crystal waveguide 失效
    短路光子晶体波导

    公开(公告)号:US06687447B2

    公开(公告)日:2004-02-03

    申请号:US09846856

    申请日:2001-04-30

    IPC分类号: G02B612

    摘要: A photonic crystal waveguide apparatus has a photonic crystal having a waveguide which is capable of transmitting light having a frequency within a bandgap of the photonic crystal, and a resonant stub connected to the waveguide to control light in the waveguide. The resonant stub has a resonator region and a connecting channel which connects the resonator region to the waveguide. The resonant stub controls light transmission characteristics of the waveguide by creating a transmission zero in the transmission band of the waveguide. A tuner for tuning the resonant stub may also be provided to control the transmission zero to provide an active optical apparatus such as an on/off switch or a modulator.

    摘要翻译: 光子晶体波导装置具有光子晶体,其具有能够透射光子晶体的带隙内的频率的光的波导,以及连接到波导的共振短截线,以控制波导中的光。 谐振短截线具有谐振器区域和将谐振器区域连接到波导的连接通道。 谐振短截线通过在波导的传输频带中产生传输零点来控制波导的光传输特性。 还可以提供用于调谐谐振短截线的调谐器以控制传输零点以提供诸如开/关开关或调制器之类的有源光学装置。

    Light emitting device including arrayed emitters defined by a photonic crystal
    5.
    发明授权
    Light emitting device including arrayed emitters defined by a photonic crystal 有权
    发光器件包括由光子晶体限定的阵列发光体

    公开(公告)号:US07697584B2

    公开(公告)日:2010-04-13

    申请号:US11537940

    申请日:2006-10-02

    IPC分类号: H01S5/00

    摘要: A light emitting device includes a structure with a light emitting region disposed between an n-type region and a p-type region. A plurality of holes in the structure, which form a photonic crystal, are formed in a first region of the structure corresponding to a first portion of the light emitting region. A second region of the structure corresponding to a second portion of the light emitting region is free of holes. The device is configured such that when forward biased, current is injected in the second region and the first region is substantially free of current.

    摘要翻译: 发光器件包括具有设置在n型区域和p型区域之间的发光区域的结构。 形成光子晶体的结构中的多个孔形成在与发光区域的第一部分对应的结构的第一区域中。 与发光区域的第二部分对应的结构的第二区域没有孔。 该器件被配置为使得当正向偏置时,电流注入第二区域,而第一区域基本上没有电流。

    Photonic crystal interferometric switch
    7.
    发明授权
    Photonic crystal interferometric switch 失效
    光子晶体干涉开关

    公开(公告)号:US06775430B2

    公开(公告)日:2004-08-10

    申请号:US09946847

    申请日:2001-09-04

    IPC分类号: G02B626

    摘要: A photonic crystal interferometric switch has a photonic crystal; a waveguide in the photonic crystal, the waveguide having at least one input portion, at least two output portions and an interference channel connecting the at least two output portions, the waveguide capable of transmitting light within a bandgap of said photonic crystal; and a resonant member connected to at least one of the at least two output portions to control a property of light in the at least one output portion, to control the interference of light in the waveguide. A 1×2 optical switch may be constructed by tuning the parameters of the resonant member, either optically or electronically, resulting in a switching of a light signal from one output portion to another output portion. Furthermore, by isolating one output portion of the interferometer, the apparatus may be utilized as an optical modulator.

    摘要翻译: 光子晶体干涉式开关具有光子晶体; 光子晶体中的波导,所述波导具有至少一个输入部分,至少两个输出部分和连接所述至少两个输出部分的干涉通道,所述波导能够在所述光子晶体的带隙内传输光; 以及共振构件,其连接到所述至少两个输出部分中的至少一个,以控制所述至少一个输出部分中的光的特性,以控制所述波导中的光的干涉。 可以通过以光学或电子方式调谐谐振元件的参数,从而将光信号从一个输出部分切换到另一个输出部分来构造1x2光开关。 此外,通过隔离干涉仪的一个输出部分,该装置可以用作光学调制器。

    Continuously tunable photonic crystal drop filter
    8.
    发明授权
    Continuously tunable photonic crystal drop filter 有权
    连续可调光子晶体滴滤光片

    公开(公告)号:US06760514B2

    公开(公告)日:2004-07-06

    申请号:US10085690

    申请日:2002-02-27

    IPC分类号: G02B626

    摘要: A photonic crystal drop filter apparatus and a method for tuning a photonic crystal drop filter. The photonic crystal drop filter has a photonic crystal having first waveguide for transmitting light having a frequency within a bandgap of the photonic crystal, and a second waveguide. The second waveguide is connected to the first waveguide by a resonant cavity for extracting at least one wavelength of the light transmitted by the first waveguide and redirecting the extracted light to the second waveguide. A tuning device is included in the apparatus to tune the wavelength of the extracted light over a full range of wavelengths. The apparatus is particularly suitable as an extraction device for optical communications systems such as a WDM communications system wherein it is necessary to extract one or more carrier signals from a plurality of carrier signals.

    摘要翻译: 一种光子晶体滴滤波器装置和调制光子晶体滤波器的方法。 光子晶体滴滤光器具有光子晶体,该光子晶体具有用于透射光子晶体的带隙内的频率的光的第一波导和第二波导。 第二波导通过谐振腔连接到第一波导,用于提取由第一波导透射的光的至少一个波长,并将提取的光重定向到第二波导。 调谐装置包括在装置中以调谐所提取的光在波长范围内的波长。 该装置特别适用于诸如WDM通信系统的光通信系统的提取装置,其中需要从多个载波信号中提取一个或多个载波信号。

    LED including photonic crystal structure
    9.
    发明授权
    LED including photonic crystal structure 有权
    LED包括光子晶体结构

    公开(公告)号:US07642108B2

    公开(公告)日:2010-01-05

    申请号:US11868854

    申请日:2007-10-08

    IPC分类号: H01L21/00

    摘要: A photonic crystal light emitting diode (“PXLED”) is provided. The PXLED includes a periodic structure, such as a lattice of holes, formed in the semiconductor layers of an LED. The parameters of the periodic structure are such that the energy of the photons, emitted by the PXLED, lies close to a band edge of the band structure of the periodic structure. Metal electrode layers have a strong influence on the efficiency of the PXLEDs. Also, PXLEDs formed from GaN have a low surface recombination velocity and hence a high efficiency. The PXLEDs are formed with novel fabrication techniques, such as the epitaxial lateral overgrowth technique over a patterned masking layer, yielding semiconductor layers with low defect density. Inverting the PXLED to expose the pattern of the masking layer or using the Talbot effect to create an aligned second patterned masking layer allows the formation of PXLEDs with low defect density.

    摘要翻译: 提供了一种光子晶体发光二极管(“PXLED”)。 PXLED包括在LED的半导体层中形成的诸如孔格的周期性结构。 周期性结构的参数使得由PXLED发射的光子的能量靠近周期性结构的带结构的带边。 金属电极层对PXLED的效率有很大的影响。 此外,由GaN形成的PXLED具有低表面复合速度,因此具有高效率。 PXLED由新颖的制造技术形成,例如在图案化掩模层上的外延横向过度生长技术,产生具有低缺陷密度的半导体层。 将PXLED反转以露出掩模层的图案或使用Talbot效应创建对准的第二图案化掩模层允许形成具有低缺陷密度的PXLED。